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Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair
Make
Model
Problem
Solution
Date
Found: 14
Mitsubishi
AV1 srs
RF PATTERNING ( SIMILAR TO VIDEOCRYPT )
FIT RF LEAD Pt No H24P001010
14-09-04
Mitsubishi
AV1 srs
RGB OUTPUT SC ( IC660 TEA5101B )
CHECK FOR 12v ON WIRE LINK TO PIN 2. IF MISSING OR LOW PICTURE WILL BE AWFUL AND A1 WILL NOT SET COECTLY. Q6E8 LEAKY. REPLA
14-09-04
Mitsubishi
AV1 srs
Tuning drift . Fit previous mod if not done alread
Change R120 , 121 ( 56k ) to 18k , remove R736 ( 22k ) and fit an 8k2 & 15k 1/6w R-Metal in series . Make sure AFT is ON .
14-09-04
Mitsubishi
AV1 srs ( 2
POOR PICTURE .
CHANGE R521 FROM 82k TO 56k AND FIT ZENER DIODE KIT , Pt No 264P45090
14-09-04
Mitsubishi
AV1 srs WITH SAT
BLANK RASTER OSD OK.
Z953 1.6A OC DUE TO LNB SHORTED - UPRATE TO 3.15A Pt No 299P193030
14-09-04
Mitsubishi
CT28A
V1S
Dead - no st/by
LOPTx faulty - HR8204 is a replacement
14-09-04
Mitsubishi
CT28A
V1S
No sound after ext spkrs connected
Check 4 x TDA7263 o/p chips (1 partly hidden) & safety res on audio panel
14-09-04
Mitsubishi
CT29B
V1S
int black sreen & no sound - Led still lights
Q953 dry joint (6cm back from cooling fin) if OK there is 12 v on collector and 8 v on emitter.
14-09-04
Mitsubishi
M srs AV1 srs
RF PATTERNING ( SIMILAR TO VIDEOCRYPT )
FIT RF LEAD Pt No H24P001010
14-09-04
Mitsubishi
M5 & AV1 srs
WHEN SWITCHED ON LED COMES ON GREEN , HT & LT PRES
CHANGE C955 TO 3300uF 35v ( Pt No 181P353000 ) EEPROM MAY NEED RE-SETTING .
14-09-04
Mitsubishi
M5 & AV1 srs ( 2
POOR PICTURE .
CHANGE R521 FROM 82k TO 56k AND FIT ZENER DIODE KIT , Pt No 264P45090
14-09-04
Mitsubishi
M5 & AV1 srs ( 2
POOR PICTURE .
REMOVE Q6E2 , 6E3 , 6E4 , 6E5 . DECREASE RED DRIVE BY '5' POINTS , INCREASE BLUE BY '3' STEPS . THIS HAS BEEN DONE ON LATER S
14-09-04
Mitsubishi
M5 and AV1 srs
RGB OUTPUT SC ( IC660 TEA5101B )
CHECK FOR 12v ON WIRE LINK TO PIN 2. IF MISSING OR LOW PICTURE WILL BE AWFUL AND A1 WILL NOT SET COECTLY. Q6E8 LEAKY. REPLA
14-09-04
Mitsubishi
M5 and AV1 srs
TUNING DRIFT OR INCOECT AFC OPERATION
FIT 180k + IN4148 IN SERIES FROM TUNER PINS 2 - 6 ( PIN 2 -180k->l- PIN 6 )
14-09-04
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